A United Airlines flight was forced to make an emergency landing after the aircraft's wing came apart mid-air.<br /><br />Passengers on the domestic flight from San Francisco, California, USA, to Boston, Massachusetts, noticed the wing falling to pieces while in the air.<br /><br />The Boeing 757 was forced to make an emergency landing in Denver, Colorado on February 20. <br /><br />Kevin Clarke, who recorded the footage, says: "Can't wait for this flight to be over.<br /><br />"They've got another plane waiting for us to continue to Boston and the nightmare will be over."
